it is not
just tastes bad
Never
In most communities, tap water is safe for drinking.
Is the water not hot? Or no water coming out the hot tap? not comming out at all
Bad /defective divertor
Well, it depends, if the water is not fresh the no, Not ANYWHERE in the world. But if you lived in Australia, the tap water is 100% safe to drink, well as long as it STRAIGHT from the tap.
Most probably the "sediments" have settles to the bottom and as the hot water is taken off the top of the heater there will be none in the tap water. Hot water will contain less calcium and other impurities (they fall out and become those "sediments" but hot water may also dissolve other compounds from pipes. I use hot tap water in my coffee pot.
No, never drink hot tap water, but cold tap water is actually really healthy for you!
Neither!
Tap water is potable, or drinking, water. When it is introduced into a boiler or other non-drinking resources, it becomes NON potable
hot filtered water
Tap water is generally a drinking water, containing some permitted minor impurities.
Tap water is bad because it has loads of chemical in it.Tap water is bad because it has loads of chemical in it.